Conduit railway-trolley



(No Model.)

H. A. GOREHAM. GONDUIT RAILWAY TROLLEY.

Patented NOV. '7, 1893.

INVENTD R H- AG OREHAM,

by his attorqgy UNITED STATES PATENT OFFICE.

HERBERT A. GOREHAM, OF DECATUR, ILLINOIS.

CON DU IT RAI LWAY-TROLLEY.

SPECIFICATION forming part of Letters Patent No. 508,104, dated November7, 1893.

Application filed January 31, 1893. Serial ITO-460,276. (No model.) 7

To all whom it may concern.-

Be it known that I, HERBERT A. GOREHAM, of Decatur, in the county ofMacon and State of Illinois, have invented certain new and usefulImprovements in Trolleys for Underground Circuits, of which thefollowing is a specification.

This invention is designed to enable elec tric cars to be efifectivelyconnected with underground circuits, thereby obviating the necessity ofpoles and overhead wires, and it is embodied in the details ofconstruction and combinations of parts hereinafter set forth andclaimed.

In the drawings forming part of this specification, Figure 1 is a sideelevation of a trol ley constructed in accordance with my invention.Fig. 2 is an'end elevation of the same. Fig. 3 is a plan of the bracketthat carries the trolley and connects with the car. Fig. 4 is a verticalsection through the bracket on broken line X in Fig. 3.

The bracket 1 is adapted to connect with the lower frame work of a car,and it preferably has grooves, or recesses, as 2 and 5, that may receivethe axle 3 of the car, and so permit the placing of the bracket in closeproximity to the axle. One of the sides of the bracket is removable,such side being indicated in the drawings by reference numeral 4, and itis normally held in position by means of stud bolts 6. A slot l extendsvertically through the bracket, and such slot is of uniform width fromfront to back while widening laterally toward the bottom. The lower endof the slot is provided with inwardly extending springs 7, which effecta result to be hereinafter explained. The trolley standard 8 and stem 9are preferably made in two separable parts suitably secured together byscrews or their equivalents. The bracket 10 of pulley 11 is secured inand insulated from the stem 9, and a wire runs from the bracket upwardbetween the parts of the stem and the standard in a manner topermitconnection with the motor of the car. Yoke 15 is held in loop 16 on theupper end of the standard, springs 12 are connected with the hooked endsof the yoke, and rods 13 connect the springs with staples 14 on thesides of the bracket. An eye; as 17, on the top of the standard providesa lift connection for the standard, which is to be used to carry thetrolley in case of the same becoming in any way disabled. In Fig. 1aeircuit wire is represented at 19, and in Fig. 2 the slot in the trenchin which the circuit wire is placed is shown at 20.

In operation, the stem of the trolley standard extends through the slotof the trench and the pulley rests on the wire. The springs drawyieldingly down on the trolley and compensate for variations in thedistance of the car from the wire, the vertical position of the stemenables curves to be made without binding, and the lateral widening ofthe lower end of the slot of the standard permits sufficient side swingof the trolley to accommodate ordinary deviations in the wire. Thesprings 7 bear against the sides of the standard and tend to hold thesame perpendicular. A pin is shown at 18 which, in case of displacementof the trolley from the wire, will limit the fall of the trolley andavert damage thereto.

The mechanism herein described embodies my invention, and I claimnothing novelin the way of making electrical connections with thetrolley. This may be done in any manner preferred by the electrician incharge, and consequently I have not shown any particular way.

' Having thus described my invention, I claim as new and desire tosecure by Letters Patent 1. A trolley for underground wires comprisingthe vertically slotted bracket, the trolley standard in the slot of thebracket, and the springs connecting the standard with the bracket andtending to force the standard downward, substantially as set forth.

2. A trolley for underground wires comprising the vertically slottedbracket, the two part standard in the slot of the bracket and providedwith a trolley pulley at its lower end, and springs connecting thestandard with the bracket and tending to force the standard downward,substantially as set forth.

3. The combination of the vertically slotted bracket, the trolleystandard in the slot of the bracket, the yoke across the upper end ofthe standard, and the springs connected with the yoke and with thebracket and tending to draw the standard downward, substantially as setforth.

4. The combination of the bracket having the vertical slot widenedlaterally toward the lower end thereof, the trolley standard extendedthrough the slot, the springs in the slot bearing against the sides ofthe standard, and the springs connected with the upper end of thestandard and with the bracket substantially as set forth.

5. The combination of bracket 1 having slot 1 widened toward its lowerend, the springs 7 in the slot on oppositesides thereof, the two partstandard 8 having the stem 9 adapted to 15 the slot of a trench,bracket10 secured in the lower end of the stem and carrying pulley 11, yoke 15across the upper end of the standard, springs 12 on opposite ends of theyoke, and rods 13 connecting the springs with the bracket, substantiallyas set forth.

In testimony whereof I sign my name in the presence of two subscribingwitnesses.

HERBERT A. GOREHAM.

Attest:

MABEL O. RUSH, VVILLETTA JOHNSON.

